Extech 480403 Phase Rotation Tester

SKU: EXTE480403
  • Contactless testing of motor rotation
  • LED display with live line and phase rotation indication
  • Supplied with three test leads and set of crocodile clips
More Info
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Extech 480403 Phase Rotation Tester

The Extech 480403 Phase Rotation Tester is a useful instrument that is capable of showing the phase rotation of a motor, even without being physically connected. When connected, it is also capable of checking if each phase is live and it is ideal for making sure that incorrect wiring does not cause any damage.

The tester has a 40V to 600V AC testing range on voltages of a frequency between 2 to 400Hz for testing phase orientation. The LED interface indicates clockwise or anti-clockwise rotation as well as the status of each of the three phases.

The Extech 480403 is a lightweight model and is protected by double-moulded durable housing. It comes supplied with three test leads and a set of wide-jaw crocodile clips as well as a pouch case and 9V battery.

Extech part number: 480403

Key Features

  • Indicates phase rotation
  • Indicates live lines
  • Contactless phase rotation indication
  • 40V to 600V AC testing range
  • LED display for rotation and phase status
  • Supplied with leads and cables

What's In The Box?

  • Extech 480403 Phase Rotation Tester
  • Three test leads
  • Three crocodile clips
  • 9V battery
  • Instruction booklet
  • Soft carry case


  • Operating temperature: 0 to 40˚C
  • Operating humidity: 15% to 85% RH
  • Operating altitude: 2000m


  • Dimensions: 130mm x 69mm x 32mm
  • Weight: 130g


  • Electrical safety approvals: IEC 61010 / EN 61010; IEC 61557-7 / EN 61557-7
  • Max operating voltage: 600V
  • Protection levels: Cat III 600V


  • Battery type: 9V
  • Current consumption: 20mA max
  • Battery life: One year max.
  • Nominal voltage: 40 to 600VAC
  • Frequency range: 2Hz to 400Hz
  • Nominal test current: <3.5mA